Absolutely not, modern C code (eg C99 or later) looks a lot different than C89. One problem is that the C stdlib is stuck in the C89 era, but at the same time m

Absolutely not, modern C code (eg C99 or later) looks a lot different than C89. One problem is that the C stdlib is stuck in the C89 era, but at the same time most of the stdlib isn't all that important for writing C code).